NEET MDS Shorts
92339
General Medicine
Parahemophilia is a congenital deficiency of factor V, which is less severe than Hemophilia A or B. It leads to a mild bleeding diathesis. Factor XII deficiency is associated with Hageman trait, which typically does not cause a significant bleeding tendency.
69347
General MicrobiologyPrevotella intermedia and P. melaninogenicus (now known as Aggregatibacter actinomycetemcomitans) are both anaerobic bacteria that can be found in the oral cavity and are involved in the pathogenesis of periodontal diseases, including dentoalveolar abscesses. Fusobacterium nucleatum is another anaerobic bacterium commonly found in dental plaque and is associated with various oral infections, including dentoalveolar abscesses.
31048
RadiologyAll of the following are radiolucent except osteopetrosis.
86863
MicrobiologySoaps typically have the narrowest effective antimicrobial range among the listed compounds. They are primarily effective against certain bacteria and viruses but may not be as potent against a broader spectrum of pathogens compared to glutaraldehyde or alcohols like 70% isopropanol.
24191
Oral PathologyThe prognosis of epidermoid carcinoma (squamous cell carcinoma) is generally considered least favorable in the posterior lateral border of the tongue compared to the lower lip, upper lip, or hard palate because the tongue has a rich lymphatic supply, leading to a higher risk of early metastasis to regional lymph nodes.
30407
Dental Materials
Heating a gypsum cast to a temperature above 90°C will remove water of
crystallization and strengthen it. This process is called "burning out" the
gypsum, and it is used to remove the remaining moisture and improve the cast's
stability and accuracy. Gypsum casts are made by mixing plaster of Paris (calcium sulfate hemihydrate)
with water. When the material sets, it forms calcium sulfate dihydrate crystals
with water molecules trapped within the crystal lattice, known as water of
crystallization. Heating the cast above 90°C causes the water of crystallization
to be released, which results in the cast becoming stronger and more rigid. This
process does not cause the cast to expand but rather to shrink slightly as the
water is removed. Excess gauging water is typically removed during the initial
setting process.
49017
INI CET
At high altitudes, lower partial pressure of oxygen triggers hyperventilation to increase oxygen intake. This excessive breathing causes a rapid loss of CO2, leading to an initial state of respiratory alkalosis.
56855
Oral SurgeryLocal anaesthetic cartridges contain small bubbles of nitrogen gas.
96375
Conservative DentistryDuring cavity preparation, the incidence of pulpal exposure is higher in class V cavities on first premolars due to the proximity of the margins to the pulp horns.
56737
ProsthodonticsRelief is important in denture design as it helps to prevent pressure points that could cause discomfort or tissue damage.